Evolution of the NFL Player

Today's NFL athletes are bigger, faster and more specialized than they were in the league's earliest days. See how professional football players have evolved from "everyman" to "superman."

The State of Football: The Evolution of the Slot Receiver - NFL Draft Blitz

Rovio adds NFL related features to Angry Birds 2 and Angry Birds Evolution - PhoneArena

NFL: the Evolution of Offensive Linemen Throughout NFL History

Genealogy of American Football: Evolution of goal posts - Big Blue View

Evolution of NFL Ages

Mobile Quarterbacks Evolution: How Justin Fields, Lamar Jackson, and Others Are Immortalizing the Work of Mike Vick

NFL's First Evolution: 'The Greatest Game Ever Played

Evolution of the NFL Player

Evolution of the NFL Player

Tight end position has undergone quite an evolution in NFL - Red Deer Advocate

Evolution of the game: The past decades have seen multiple changes to make NFL action more compelling